OTG: These stylish goggles are made with a soft, flexible PVC body to ensure proper fit and comfort; Designed to fit over most prescription eye wear, the wraparound construction provides a perfect fit and seal. Vented: Made with a clear uncoated, polycarbonate lens to provide optical clarity during a variety of applications; These protective goggles have direct vents that allow maximum airflow while protecting against dust and flying debris. Certified: With an adjustable, 18" flame retardant head band, our product is OSHA compliant, meets ANSI Z87.1+ standards with a 99% UV protection rating.